586 
VII. LICHENES. 
[Gr aphis. 
with a raised tliallodal border ; paraphyses slender, distinct ; spores oblong, 
many-celled. 
A large tropical and subtropical, rarely temperate genus of Lichens, growing on the bark 
of trees, comparatively rare in temperate climates. 
1. G. scripta, Ach. ; — Bab. in FI. N. Z. ii. 302. Thallus thin, mem- 
branous, smooth, somewhat shining, grey-white, indistinctly bordered with 
black. Apothecia partly immersed, black, naked or pruinose, flexuose, 
simple or branched ; branches subparallel ; spores oblong, 7-9-celled. — Nyland. 
Lich. Scand. 251. 
Northern Island : on bark, Colenso, Knight. (Cosmopolite.) 
2. G. anguina, Mont. Sylloge, 352 (Ustalia). Thallus between mem- 
branous and crustaceous, white, minutely granular. Apothecia immersed, 
minute, crowded, linear, flexuose, simple and forked ; border prominent ; disk 
brown, concave, convex when moist ; spores oblong-cylindric, multicellular. 
Northern Island : Auckland, Knight, on bark. (Cosmopolite.) 
3. G. elegans, Ach. Thallus orbicular, granulated, white. Apothecia 
immersed, scattered, divaricating, usually simple, with a grooved as well as 
tliallodal border; spores cylindric-fusiform, about 10-septate. — Nyland. Prodr. 
Lich. Gall, et Alger. 151. 
Northern Island : Auckland, Kniglit , on bark. (Almost cosmopolitan.) 
4. G. scalpturata, Ach. Thallus yellow, membranous. Apothecia 
short or long, simple forked or branched, flexuose ; margined by a thickening 
of the thallus ; disk black, deciduous ; spores large, brown, oblong, 10-septate 
and usually divided. — Mont, in Ann. Sc. Nat. ser. 2. xviii. 274. 
Northern Island : Auckland, Knight, on bark. (Tropical America.) 
5. G. confinis, Knight arid Mitten in Linn. Trans, xxiii. 102. 1. 11./. 20. 
Thallus cream-coloured or grey. Apothecia immersed, elongate, wavy, some- 
time forked or branched, ends acute, closed by the inflexed border ; perithe- 
cium entire below or dimidiate ; spores 6-8-septate, interspaces transversely 
oval, 0'00034 in. broad, O'OOll in. long. 
Northern Island: Auckland, on bark of trees, Knight .- — Near G. scripta, but tballus 
paler aud border of perithecium narrower and thicker. 
6. G. (Fissurina) insidiosa, Kniglit and Mitten, l.c. t. 12./. 21. 
Thallus thick, uneven, warty, dull green, brownish when dry. Apothecia 
crowded, deeply immersed in warts of the thallus, simple or branched, closed ; 
lips paler; spores in single series, ovoid or obovate, yellow, (LOGOS in. 
broad, 0 - 0007 long. 
Northern Island: Auckland, on bark of trees, Knight . — Apothecia invisible to the 
naked eye. 
7. G. (Fissurina) inquinata, Knight and Mitten, l.c. t. 12. /. 22. 
Thallus cartilaginous, polished, ashy-grey or brown, uneven. Apothecia 
deeply immersed, narrow, elongate, wandering, variously branched and wavy, 
almost covered by the darkened border of the thallus; spores oblong or ob- 
ovate, yellow, 3-4-septate, 0 00040 in. broad, 0’00084 long. 
